Regulated deficit irrigation effects on physiological parameters, yield, fruit quality and antioxidants of Vaccinium corymbosum plants cv. Brigitta

Lobos, Tomas; Retamales, Jorge B.; Ortega-Farías, Samuel; Hanson, Eric J.; López-Olivari, Rafael; Mora, Marı́a de la Luz

doi:10.1007/s00271-017-0564-6

Cited by 29 publications

(14 citation statements)

References 61 publications

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“…In 'Brigitta', with the highest total sugar content and sugar/organic acid ratio in the fruit under the high tunnel and in the ridge, this suggests that the high sugar concentration is due to lower substrate water content and, consequently, lower fruit weight. This is in agreement with some previous studies, where an induced water deficit significantly reduced fruit weight and increased soluble solids in 'Elliot' and 'Brigitta' [49,50].…”

Section: Discussionsupporting

confidence: 93%

Fruit Quality and Yield of Three Highbush Blueberry (Vaccinium corymbosum L.) Cultivars Grown in Two Planting Systems under Different Protected Environments

et al. 2021

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Due to the increasing interest in highbush blueberry (Vaccinium corymbosum L.) among consumers, together with the problems of climate change and specific substrate requirements, a novel approach to intensive blueberry production is required. Here, ‘Duke’, ‘Aurora’, and ‘Brigitta’ blueberry cultivars were planted under the protective environments of a high tunnel and black hail net, each using ridge and pot planting systems. The high tunnel increased the maximal air temperature on average by 7.2 °C compared to the hail net. For all three cultivars, harvest began 6 to 18 days earlier under the high tunnel than under the hail net; however, lower yields and individual phenolics contents were obtained for the fruit. In ‘Aurora’ and ‘Brigitta’, environmental conditions under the high tunnel also reduced plant volume and fruit sugar/organic acid ratio. Growing blueberry plants in 60 L pots had no negative effects on plant volume and fruit ripening time, yield, firmness, color, and chemical composition. This study represents the first to compare highbush blueberry grown under the high tunnel and hail net protective environments using ridge and pot planting systems across three different cultivars. Here, we can conclude that optimal highbush blueberry production of ‘Duke’, ‘Aurora’, and ‘Brigitta’ under the climate conditions of the study provides earlier ripening times under the high tunnel. However, according to fruit yield and quality, all three cultivars benefit from the hail net over the high tunnel, while ‘Duke’ and ‘Brigitta’ also benefit in particular from the hail net combined with growth in pots.

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Section: Discussionsupporting

confidence: 93%

Fruit Quality and Yield of Three Highbush Blueberry (Vaccinium corymbosum L.) Cultivars Grown in Two Planting Systems under Different Protected Environments

et al. 2021

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“…Bryla and Strik (2007) observed similar reductions in stem water potential with no rain or irrigation for 7 d in a mature planting of 'Duke', 'Bluecrop', and 'Elliott' blueberry that was otherwise irrigated once or twice per week using overhead sprinklers. G S and photosynthesis decrease rapidly as stem water potential declines to less than -0.6 to -0.8 MPa in highbush blueberry (Bryla and Strik, 2006;Lobos et al, 2018) and, therefore, could reduce plant growth and fruit production (Bryla, 2011).…”

Section: Resultsmentioning

confidence: 99%

“…We and others previously demonstrated that severe water deficits consistently increased both firmness and soluble solids of northern and southern highbush blueberry (complex hybrids largely based on V. corymbosum and V. darrowii Camp.) due to their negative effect on fruit size (Almutairi et al, 2017;Bryla et al, 2009;Ehret et al, 2012Ehret et al, , 2015Lobos et al, 2018). Clearly, conflicting results of water deficits can arise from different stress intensities, strong genotype • environment interactions, and complex interactions among the numerous mechanisms involved in the final fruit quality (Ripoll et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

“…However, Abbott and Gough (1987) observed that it is precisely during stage II, or the middle lag phase period, of fruit development that vegetative growth is at its maximum peak for northern highbush blueberry. Vegetative growth tends to be more sensitive to water limitations than fruit growth; therefore, it is more often affected by mild or moderate water deficits than yield or fruit quality (Egea et al, 2013;Lobos et al, 2018;Romero et al, 2006).…”

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confidence: 99%

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Sensitivity of Northern Highbush Blueberry Cultivars to Soil Water Deficits during Various Stages of Fruit Development

Almutairi¹,

Bryla²,

Strik³

2021

horts

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In many regions, water limitations are increasing because of frequent and persistent droughts and competition for water resources. As a result, growers in these regions, including those producing blueberries, must limit irrigation during drier years. To identify the most critical periods for irrigation, we evaluated the effects of soil water deficits during various stages of fruit development on different cultivars of northern highbush blueberry (Vaccinium corymbosum L.). The study was conducted for 2 years in western Oregon and included two early season cultivars, ‘Earliblue’ and ‘Duke’, a midseason cultivar, ‘Bluecrop’, and two late-season cultivars, ‘Elliott’ and ‘Aurora’. Volumetric soil water content and stem water potentials declined within 1 to 2 weeks with no rain or irrigation in each cultivar and were lowest during the later stages of fruit development. Water deficits reduced berry weight by 10% to 15% in ‘Earliblue’ and ‘Elliott’ when irrigation was withheld in the second year during early or late stages of fruit development and by 6% to 9% in ‘Aurora’ when irrigation was withheld in either year during the final stages of fruit development. However, water deficits only reduced yield significantly in ‘Aurora’, which produced 0.8 to 0.9 kg/plant fewer fruit per year when irrigation was withheld during fruit coloring. In many cases, water deficits also reduced fruit firmness and increased the concentration of soluble solids in the berries, but they had inconsistent effects on titratable acidity and sugar-to-acid ratios. As a rule, water deficits were most detrimental during later stages of fruit development, particularly in midseason and late-season cultivars, which ripened in July and August during the warmest and driest months of the year.

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“…Different authors have reported similar results of Ψs after applying regulated deficit irrigation. Lobos et al [25] reported −0.70 and −1.20 MPa in Brigitta plants for fully irrigated plants and severe water deficits, respectively. Keen and Slavich [26] described a range from −0.60 to −1.50 MPa in Star plants.…”

Section: Discussionmentioning

confidence: 98%

Sunscreen Based on Dicarboxylic Acid Salts Applications to Blueberries (Vaccinium corymbosum L.) Plants: Effects on Water Stress Tolerance and Productivity

et al. 2022

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Background: Recently, antitranspirant or radiation-reflective products have been studied in several crops to mitigate the negative effects of global warming in Mediterranean climates. Nevertheless, to our knowledge, there is a scarce availability of information studying their effects on blueberries and much less from applications of sunscreens elaborated based on a mixture of dicarboxylic acids. Methods: Controls and three treatments were performed in ‘Duke’ and ‘Star’ blueberries as follows: (i) control without water stress (T1 = 100% ETc); (ii) foliar application of sunscreen in plants without water stress (T2 = 100% ETc + sunscreen); (iii) water stress in plants without foliar application of sunscreen (T3 = 50% ETc); (iv) foliar application of the sunscreen in plants with water stress (T4 = 50% ETc + sunscreen). Stem water potential (Ψs), stomatal conductance (gs), yield, berry weight and berry total soluble solids were determined. (3) Results: As expected, the decrease in irrigation frequency in water stress treatments (T3 and T4) allowed for a decrease in the water applied at 25% compared to non-stressed plants (T1 and T2). This resulted in an increase in the Ψs on the days closest to harvest in both varieties, decreasing gs in blueberries plants subjected to water stress conditions. Sunscreen applications to Duke plants subjected to water stress (T4) induced higher total berry soluble solids than the treatments performed in non-stressed plants (T1 and T2). Sunscreen applications to Star plants subjected to water stress (T4) promoted similar gs levels and did not affect total soluble solids concerning irrigated plants (T1 and T2). (4) Conclusions: The results suggest that the response to water stress to sunscreen application based on dicarboxylic acid salts depended on the cultivar. Therefore, despite the novelty of this research, it is necessary to perform long-term studies to establish accurate conclusions.

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Regulated deficit irrigation effects on physiological parameters, yield, fruit quality and antioxidants of Vaccinium corymbosum plants cv. Brigitta

Cited by 29 publications

References 61 publications

Fruit Quality and Yield of Three Highbush Blueberry (Vaccinium corymbosum L.) Cultivars Grown in Two Planting Systems under Different Protected Environments

Fruit Quality and Yield of Three Highbush Blueberry (Vaccinium corymbosum L.) Cultivars Grown in Two Planting Systems under Different Protected Environments

Sensitivity of Northern Highbush Blueberry Cultivars to Soil Water Deficits during Various Stages of Fruit Development

Sunscreen Based on Dicarboxylic Acid Salts Applications to Blueberries (Vaccinium corymbosum L.) Plants: Effects on Water Stress Tolerance and Productivity

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